01 -
In a bowl, stir together the Greek yogurt, peanut butter, protein powder, sweetener (maple syrup or honey), and vanilla extract until smooth and creamy.
02 -
Line a quarter sheet pan (or a 9x13 inch baking pan) with parchment paper. Spread the yogurt mixture evenly on the pan, aiming for a thickness of ¼ to ½ inch.
03 -
Melt the dark chocolate chips in the microwave in 30-second increments, stirring between each interval, until smooth and fully melted.
04 -
Spread the melted chocolate evenly over the yogurt mixture.
05 -
Transfer the pan to the freezer and freeze for at least 2-3 hours, or until completely firm.
06 -
Once frozen, sprinkle with flaked sea salt (if using). Cut into pieces with a sharp knife or break into chunks by hand. Serve immediately or store in the freezer.